Combined type electric fan air outlet net

Abstract

The utility model provides a combined type electric fan air outlet net which comprises a first air net component, a second air net component and a plurality of second air net components. A rotating shaft is arranged in the middle of the second air net component, the rotating shaft is connected to the interior of the rotating connecting hole, and the second air net component is provided with a plurality of second grids; at least one pair of buckling keys is further arranged on the second air net component; the first wind net component is provided with a front projection surface; when the second air net component rotates to a first position relative to the first air net component, the projection of the first grid on the orthographic projection surface coincides with the projection of the second grid on the orthographic projection surface; when the second wind net component rotates to a non-first position relative to the first wind net component, the projection of the first grid on the orthographic projection surface and the projection of the second grid on the orthographic projection surface are crossed; according to the electric fan, the size of the air outlet grid formed between the second grid and the first grid can be changed, so that the air outlet speed and the air coverage range of the electric fan are changed.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a combined electric fan air outlet net. Background Art

[0002] An air outlet net is installed on the air outlet side of the electric fan. The air outlet net can cover the fan blades to play a safety role. It can block some dust and prevent dust from being adsorbed on the fan blades. In addition, there are multiple grids on the air outlet net. These grids can change the direction of the wind blown out by the rotation of the fan blades, so that the wind blown out by the fan blades has a wider coverage area. Generally, the grid size on the air outlet net is fixed and cannot be adjusted. When the speed of the electric fan blades is adjusted to the maximum, the wind blown out from the grid of the air outlet net has a very high wind speed, which can easily cause a sense of oppression and difficulty in breathing for users, especially some elderly people. Therefore, it is very necessary to design an electric fan air outlet net with adjustable grid size to reduce the wind speed of the wind blown out by the electric fan, increase the coverage area of ​​the wind, and give users a better experience. Utility Model Content

[0003] In order to overcome at least one of the defects described in the above-mentioned prior art, the present application provides a combined electric fan air outlet grid, which can adjust the position of the second grid relative to the first grid, thereby changing the size of the air outlet grid formed between the second grid and the first grid, thereby changing the air outlet speed and wind coverage range of the electric fan, giving users room for choice and a better user experience.

[0004] The technical solution adopted by this application to solve its technical problems is:

[0005] A combined electric fan air outlet net is proposed, comprising: a first air net component, a rotating connection hole is provided in the middle of the first air net component, the first air net component has a plurality of first grids, and the first grids are distributed around the rotating connection hole; and a second air net component, a rotating shaft is provided in the middle of the second air net component, the rotating shaft is connected to the inside of the rotating connection hole, the second air net component has a plurality of second grids, and the second grids are distributed around the rotating shaft; the second air net component is also provided with at least one pair of buckles, a pair of buckles are symmetrically distributed on both sides of the rotating shaft; and the first air net component has an orthographic projection surface; when the second air net component rotates to a first position relative to the first air net component, the projection of the first grid on the orthographic projection surface and the projection of the second grid on the orthographic projection surface coincide with each other; when the second air net component rotates to a position other than the first position relative to the first air net component, the projection of the first grid on the orthographic projection surface and the projection of the second grid on the orthographic projection surface intersect.

[0006] This application proposes a combined electric fan air outlet net, which has the following advantages compared with the prior art:

[0007] The rotating shaft in the middle of the second wind net component is connected to the inside of the rotating connection hole of the first wind net component. The first wind net component has a plurality of first grids, which are distributed around the rotating connection hole. The second wind net component has a plurality of second grids, which are distributed around the rotating shaft. The second wind net component is also provided with at least one pair of buttons, which are symmetrically distributed on both sides of the rotating shaft. The user can turn any one of the buttons to allow the second wind net component to rotate relative to the first wind net component. When the second wind net component rotates to the first position relative to the first wind net component, the projection of the first grid on the orthographic projection surface of the first wind net component and the projection of the second grid on the orthographic projection surface coincide with each other. At this time, there is a gap between the first grid and the second grid. The inner diameter of the air outlet grid formed is the largest, and the wind speed of the electric fan is faster and the wind coverage range is smaller at the same gear; when the second wind net component rotates to a non-first position relative to the first wind net component, the projection of the first grid on the orthographic projection surface and the projection of the second grid on the orthographic projection surface intersect. At this time, the inner diameter of the air outlet grid formed between the first grid and the second grid is smaller, and the wind speed of the electric fan is slower and the wind coverage range is larger at the same gear; therefore, the present application can adjust the position of the second grid relative to the first grid, so as to change the size of the air outlet grid formed between the second grid and the first grid, thereby changing the air outlet wind speed and wind coverage range of the electric fan, giving users room for choice and better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of a second air net component located in a first position in an air outlet net of a combined electric fan according to an embodiment of the present utility model;

[0009] Figure 2 This is a schematic diagram of a second air net component in a combined electric fan air outlet net according to an embodiment of the present utility model being located in a non-first position;

[0010] Figure 3 for Figure 1 Enlarged view of area A in the middle;

[0011] Figure 4 for Figure 2 Enlarged view of area B in the middle;

[0012] Figure 5 for Figure 1 A schematic cross-sectional view of the air outlet network shown in FIG;

[0013] Figure 6 for Figure 5 Enlarged view of area C in the middle;

[0014] Figure 7 for Figure 5 Enlarged view of area D in the middle;

[0015] The meanings of the reference numerals are as follows:

[0016] 1. First air net component; 2. Rotating connecting hole; 3. First grid; 4. Second air net component; 5. Rotating shaft; 6. Second grid; 7. Key; 9. First support plate; 10. Second support plate; 11. Protrusion; 12. Step; 13. Assembly groove; 14. First support ring; 15. Second support ring; 16. Groove; 17. Screw; 18. Gasket; 19. Bushing; 20. Limiting flange; X, first position. DETAILED DESCRIPTION

[0017] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0020] like Figure 1-Figure 7 As shown in, an embodiment of the present application proposes a combined electric fan air outlet net, comprising: a first air net component 1, a rotating connection hole 2 is provided in the middle of the first air net component 1, the first air net component 1 has a plurality of first grids 3, and the first grids 3 are distributed around the rotating connection hole 2; and a second air net component 4, a rotating shaft 5 is provided in the middle of the second air net component 4, the rotating shaft 5 is connected to the inside of the rotating connection hole 2, the second air net component 4 has a plurality of second grids 6, and the second grids 6 are distributed around the rotating shaft 5; the second air net component 4 is also provided with at least one pair of buckles 7, and a pair of buckles 7 are symmetrically distributed on both sides of the rotating shaft 5; and the first air net component 1 has an orthographic projection surface (not shown in the drawings); when the second air net component 4 rotates to a first position X relative to the first air net component 1, the projection of the first grid 3 on the orthographic projection surface and the projection of the second grid 6 on the orthographic projection surface coincide; when the second air net component 4 rotates to a non-first position X relative to the first air net component 1, the projection of the first grid 3 on the orthographic projection surface and the projection of the second grid 6 on the orthographic projection surface intersect.

[0021] Based on the above technical solution, the rotating shaft 5 in the middle of the second wind net component 4 is connected to the inside of the rotating connection hole 2 of the first wind net component 1, the first wind net component 1 has a plurality of first grids 3, and the first grids 3 are distributed around the rotating connection hole 2, and the second wind net component 4 has a plurality of second grids 6, and the second grids 6 are distributed around the rotating shaft 5; the second wind net component 4 is also provided with at least one pair of buttons 7, and a pair of buttons 7 are symmetrically distributed on both sides of the rotating shaft 5; the user can turn any one of the buttons 7 so that the second wind net component 4 can rotate relative to the first wind net component 1. When the second wind net component 4 rotates to the first position X relative to the first wind net component 1, the projection of the first grid 3 on the orthographic projection surface of the first wind net component 1 and the projection of the second grid 6 on the orthographic projection surface coincide with each other. At this time The inner diameter of the air outlet grid formed between the first grid 3 and the second grid 6 is the largest, and the wind speed of the electric fan is faster and the wind coverage range is smaller at the same gear; when the second wind net component 4 rotates to a non-first position X relative to the first wind net component 1, the projection of the first grid 3 on the orthographic projection surface and the projection of the second grid 6 on the orthographic projection surface intersect. At this time, the inner diameter of the air outlet grid formed between the first grid 3 and the second grid 6 is smaller, and the wind speed of the electric fan is slower and the wind coverage range is larger at the same gear; therefore, the present application can adjust the position of the second grid 6 relative to the first grid 3, so as to change the size of the air outlet grid formed between the second grid 6 and the first grid 3, thereby changing the air outlet wind speed and wind coverage range of the electric fan, giving users room for choice and providing better user experience.

[0022] The air outlet grid of the electric fan wind network is formed by ribs. The ribs can guide the wind blown out by the rotation of the fan blades, thereby reducing the wind speed and increasing the wind coverage. When the first grid 3 and the second grid 6 overlap, the inner diameter of the air outlet grid formed between the first grid 3 and the second grid 6 is the largest. The wind is fast-flowing air, and the contact area between this air and the air outlet grid is small. A small amount of air will be guided. At this time, it is manifested as: the wind blown out by the electric fan has a faster wind speed and a smaller coverage area. If the projections of the first grid 3 and the second grid 6 on the orthographic projection surface of the first wind network component 1 intersect, the inner diameter of the air outlet grid formed between the first grid 3 and the second grid 6 is smaller. It can be understood that the internal space of the first grid 3 is divided by the ribs forming the second grid 6, and many small grids are divided. The contact area between the air and these small grids is large, and a large amount of air will be guided. At this time, it is manifested as: the wind blown out by the electric fan has a slower wind speed and a wider coverage area. It should be noted here that the change in the positional relationship between the first grid 3 and the second grid 6 affects the wind speed and wind coverage of the electric fan. The comparison is made when the electric fan is in the same gear.

[0023] If the size of the air outlet grid of the air outlet network needs to be adjusted, the second air net component 4 needs to be rotated relative to the first air net component 1. The structures of the first air net component 1 and the second air net component 4 need to be stable and have a certain strength. At the same time, the relative friction between the second air net component 4 and the first air net component 1 must be small.

[0024] Therefore, in the present application, the first wind net component 1 also has a first support plate 9, a rotating connection hole 2 is provided on the first support plate 9, and the first grid 3 is distributed around the first support plate 9; similarly, the second wind net component 4 also has a second support plate 10, a rotating shaft 5 is provided on the inner side of the second support plate 10, and the second grid 6 is distributed around the second support plate 10; and, a plurality of protrusions 11 are provided on the side of the first support plate 9 facing the second support plate 10, and the protrusions 11 are distributed around the rotating connection hole 2, and the protrusions 11 are in point contact with the inner side of the second support plate 10.

[0025] In some embodiments, the protrusions 11 are centered on the rotating connecting hole 2 and are radially distributed. The protrusions 11 are conical or hemispherical. These protrusions 11 can reduce the relative friction between the first support plate 9 and the second support plate 10, that is, reduce the relative friction between the second wind net component 4 and the first wind net component 1, making it easier for users to rotate the second wind net component 4.

[0026] The first support plate 9 protrudes from one side of the first grid 3 directly connected thereto, and a step 12 is formed between the first support plate 9 and the first grid 3; the second support plate 10 protrudes from one side of the second grid 6 directly connected thereto, and an assembly groove 13 is formed between the second support plate 10 and the second grid 6, and the assembly groove 13 is connected to the outer side of the step 12.

[0027] The user can turn the button 7 to make the second air network component 4 rotate smoothly relative to the first air network component 1.

[0028] The first wind net component 1 of the present application also has a first support ring 14, which surrounds the outside of the first grid 3; the second wind net component 4 also has a second support ring 15, which surrounds the outside of the second grid 6; and the first support ring 14 and the part of the first grid 3 directly connected thereto form a groove 16, and the second support ring 15 is connected to the inside of the groove 16.

[0029] The air outlet net also includes a screw 17 and a gasket 18; the rotating connection hole 2 passes through the opposite sides of the first support plate 9; the rotating shaft 5 is connected to the inside of the rotating connection hole 2 from one side of the rotating connection hole 2; the screw 17 is connected to the rotating shaft 5 from the other side of the rotating connection hole 2; the gasket 18 is arranged between the nail cap of the screw 17 and the rotating connection hole 2.

[0030] In order to facilitate the rotation of the rotating shaft 5 inside the rotating connecting hole 2 , a shaft sleeve 19 is further provided inside the rotating connecting hole 2 .

[0031] Moreover, both the first support ring 14 and the second support ring 15 are provided with limiting flanges 20. When the second air network component 4 is located at the first position X, the two limiting flanges 20 abut against each other to ensure that the second air network component 4 can remain in the first position X.

[0032] In some embodiments, the number of first grids 3 and second grids 6 is equal, and when the second wind net component 4 is located at the first position X, the second grids 6 and the first grids 3 overlap one by one. From the appearance, the grid shapes and sizes of the second wind net component 4 and the first wind net component 1 are consistent, giving the user a sense of coordination and unity of beauty.

[0033] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A combined electric fan air outlet net, characterized in that: include: A first air network component, wherein a rotation connection hole is provided in the middle of the first air network component, and the first air network component has a plurality of first grids, and the first grids are distributed around the rotation connection hole; and A second air network component, wherein a rotating shaft is provided in the middle of the second air network component, the rotating shaft is connected to the interior of the rotating connection hole, and the second air network component has a plurality of second grids, and the second grids are distributed around the rotating shaft; The second air network component is further provided with at least one pair of buckles, and the pair of buckles are symmetrically distributed on both sides of the rotating shaft; Furthermore, the first air network component has an orthographic projection surface; When the second air network component rotates to a first position relative to the first air network component, the projection of the first grid on the orthographic projection plane and the projection of the second grid on the orthographic projection plane coincide with each other; When the second air network component rotates relative to the first air network component to a position other than the first position, the projection of the first grid on the orthographic projection plane and the projection of the second grid on the orthographic projection plane intersect.

2. The combined electric fan air outlet net according to claim 1, characterized in that: The first air network component further comprises a first support plate, the first support plate is provided with the rotation connection hole, and the first grid is distributed around the first support plate; The second air network component further comprises a second support plate, the inner side of which is provided with the rotation shaft, and the second grid is distributed around the second support plate; Furthermore, a plurality of protrusions are provided on a side of the first support plate facing the second support plate. The protrusions are distributed around the rotating connection hole, and the protrusions are in point contact with the inner side of the second support plate.

3. The combined electric fan air outlet net according to claim 2, characterized in that: The first support plate protrudes from one side of the first grid directly connected thereto, and a step is formed between the first support plate and the first grid; The second support plate protrudes from one side of the second grid directly connected thereto, and a mounting groove is formed on portions of the second support plate and the second grid, and the mounting groove is connected to the outer side of the step.

4. The combined electric fan air outlet net according to claim 3, characterized in that: The first air network component further comprises a first support ring, which surrounds the outer side of the first grid; The second air network component further has a second support ring, and the second support ring surrounds the outer side of the second grid; Furthermore, a groove is formed between the first supporting ring and a portion of the first grid directly connected thereto, and the second supporting ring is connected to the inside of the groove.

5. The combined electric fan air outlet net according to claim 4, characterized in that: The air outlet net also includes screws and gaskets; The rotating connection hole passes through two opposite sides of the first support plate; The rotating shaft is connected to the interior of the rotating connection hole from one side of the rotating connection hole; The screw is connected to the rotating shaft from the other side of the rotating connection hole; The gasket is arranged between the screw cap and the rotation connection hole.

6. The combined electric fan air outlet net according to claim 5, characterized in that: A shaft sleeve is also provided inside the rotating connection hole.

7. The combined electric fan air outlet net according to claim 4, characterized in that: The first support ring and the second support ring are both provided with limiting flanges. When the second air net component is located at the first position, the two limiting flanges abut against each other.

8. The combined electric fan air outlet net according to claim 2, characterized in that: The protrusions are centered on the rotating connection hole and are distributed radially.

9. The combined electric fan air outlet net according to claim 2, characterized in that: The protrusion is conical or hemispherical.

10. The combined electric fan air outlet net according to claim 1, characterized in that: The number of the first grids is equal to the number of the second grids, and when the second air network component is located at the first position, the second grids overlap with the first grids in a one-to-one correspondence.

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